Home / 621,805.20-933,091.80-247,789.20

Finding the Fourth Proportional to 621,805.20, 933,091.80 and 247,789.20

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Solution

The fourth proportional to 621,805.20, 933,091.80 and 247,789.20 is: 371,836.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,805.20 : 933,091.80 = 247,789.20 : x
  2. Step 2: Convert to fraction form
    621,805.20/933,091.80 = 247,789.20/x
  3. Step 3: Cross multiply
    621,805.20x = 933,091.80 × 247,789.20
  4. Step 4: Simplify right side
    621,805.20x = 231,210,070,648.56
  5. Step 5: Solve for x
    x = 231,210,070,648.56/621,805.20
  6. Step 6: Final answer
    x = 371,836.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.